Info

Fixing the while loop.

Preparation code

<script>
  var nums = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
  
  function sum_recurse(arr, i) {
   i = i || 0;
   var len = arr.length;

   function better_recurse(arr, i) {
      if (i > len) {
         return 0;
      } else {
         return arr[i] + better_recurse(arr, i + 1);
      }
   }
  }
  function sum_while(arr) {
   var total = 0,
       i = arr.length;
  
   while (i--) {
    total += arr[i];
   }
  
   return total;
  }
  
  function sum_for(arr) {
   var total = 0,
       len = arr.length;
  
   for (var i = 0; i < len; i++) {
    total += arr[i];
   }
  
   return total;
  }
</script>

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sum_recurse(nums);

sum_while(nums);

sum_for(nums);

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by JB on 5th May 2011
• Revision 2: published by Jacob KEssler on 5th May 2011
• Revision 3: published on 7th January 2012
• Revision 4: published on 3rd February 2012

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